Joseph j



(No Model.)

J. J. ADGATE. QAM CYLINDER FOR KNITTING MACHINES.

No. 546.983. Patented 0013. 1, 1895.

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AN DREW EGRANAM. FNOTO-U'I'HQWASHINGTON. 0.0

D D are the lower series of cams.

Ilrrnn rates JOSEPH J. ADGATE, OF LIBERTY, ASSIGNOR TO JOHN BENTLEY, OF NEW YORK, N. Y.

CAM=CYLINDER FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 546,983, dated October 1, 1895.

Application filed February '7, 1895. Serial No. 537,604- (No model.)

To (223 whom it may concern.-

Be it known that I, JOSEPH J. ADGATE, a citizen of the United States, residing at Liberty, Sullivan county, and State of New York, have invented certain new and useful Improvements in Cam-Cylinders for Knitting-Machines, of which the following is a specification.

My invention relates particularly to the form and arrangement of the cams used in the cam-cylinder, and is intended to provide a cam-cylinder which can be readily adapted for use in knitting either singlethread goods or in knitting weft-thread goods. As is well understood, the form of the cam'race necessary in making weft-thread goods is essentially different from the form of cam-race required for knitting single-thread goods. The

introduction of the weft-thread requires the needles to be raised and maintained in their elevated position for some distance, which is not the case with single-thread goods.

By means of my improvement I am enabled to convert a weft-thread machine into a single-thread machine, and vice versa, as the occasion may require.

In the drawings, Figure 1 is a plan view from above of the cam-cylinder. Fig. 2 is a sectional view showing the interior of the cylinder with the cams adjusted for making single-thread goods, and Fig. 3 is the same with the cams adjusted for making weft-thread goods.

Similar letters of reference designate similar parts in all the drawings.

A is the cam-cylinder.

B B B are the upper series of cams, and D The alternate cam-plates B B B are made in two parts E and C. These cam-plates are secured to the cam-cylinder A by screws e e e. The parts 0 of the cams B correspond with the openings between the cams D D of the lower series. Therefore when the parts 0 O are detached from their positions, as shown in Fig. 2, and lowered into the positions shown in Fig. 3, they fill the spaces between the cams D D D, where they are inserted, and leave above them a cam-race of the correct size for the needles to travel in while receiving the weft-thread. In changing the cams O O 0 from one position to another the screws 6 e e are loosened and inserted indilferent holes in the cam-cylinder, or, if preferred, the screw 6 may travel in a vertical slot from one position to the other and then be tightened into place.

It will be understood by those familiar with the art that the thread-guides must be adjusted for the proper introduction of the threads to correspond with the changesin the cam-cylinder.

In making difierent styles of Weft-thread goods it is sometimes desirable to have the needles elevated for a longer distance than between two of the cams D D. In that case I lower two or more adjacent points 0 from the cam-plates B into the lower series, to obtain the greater or less length of the straight part of the cam-race.

By means of my improvement a cam-cylinder can be readily adjusted for making either single-thread or weft-thread goods.

In making single-thread goods twice the number of heads can be used that can be employed in making weft-thread goods, for the reason that it is not necessary for the needles to travel any distance in an elevated position, and the arrangement of cams inmyimprovement accomplishes this in an exact manner. The number of heads being reduced by half when the cams are adjusted for the introduction of the Weft-thread will leave half of the bobbins previously used for the single threads to be then employed to carry the weft-threads, and the position of the threads will be governed by the adjustment of the thread-guides.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States, is-

1. A cam cylinder for knitting-machines consisting of the cylinder A, an upper and lower series of cam plates and intermediate adjustable cam plates whereby the course of the cam race may be changed substantially as and for the purposes set forth.

2. The combination with the cam cylinder A of the lower series of cam plates D D D, the C C C, substantially as and for the purposes upper series of cam plates B B B, a portion of set forth.

said cam plates B B being made in two parts 0 and E, substantially as and for the purposes JOSEPH AD GATE 5 set forth. Witnesses:

3. The combination with the cam cylinder WM. D. NEILLEY,

A of the cam plates D D D, B B B, E E E, and FREDERICK EBERHARDT. 

